JP3118478B2 - 包装装置 - Google Patents

包装装置

Info

Publication number
JP3118478B2
JP3118478B2 JP04024417A JP2441792A JP3118478B2 JP 3118478 B2 JP3118478 B2 JP 3118478B2 JP 04024417 A JP04024417 A JP 04024417A JP 2441792 A JP2441792 A JP 2441792A JP 3118478 B2 JP3118478 B2 JP 3118478B2
Authority
JP
Japan
Prior art keywords
film
fusing
blade
heat block
fusing blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP04024417A
Other languages
English (en)
Other versions
JPH05193626A (ja
Inventor
敏之 花方
Original Assignee
株式会社ハナガタ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社ハナガタ filed Critical 株式会社ハナガタ
Priority to JP04024417A priority Critical patent/JP3118478B2/ja
Publication of JPH05193626A publication Critical patent/JPH05193626A/ja
Application granted granted Critical
Publication of JP3118478B2 publication Critical patent/JP3118478B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B29C65/7441—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/03—After-treatments in the joint area
    • B29C66/034—Thermal after-treatments
    • B29C66/0342—Cooling, e.g. transporting through welding and cooling zone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being non-straight, e.g. forming non-closed contours
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/343—Making tension-free or wrinkle-free joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/348—Avoiding melting or weakening of the zone directly next to the joint area, e.g. by cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
    • B29C66/73715—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable heat-shrinkable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81811—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws
    • B29C66/81812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the welding jaws the welding jaws being cooled from the outside, e.g. by blowing a gas or spraying a liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/818—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps
    • B29C66/8181—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects
    • B29C66/81815—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the cooling constructional aspects, or by the thermal or electrical insulating or conducting constructional aspects of the welding jaws or of the clamps ; comprising means for compensating for the thermal expansion of the welding jaws or of the clamps characterised by the cooling constructional aspects of the clamps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8324—Joining or pressing tools pivoting around one axis
    • B29C66/83241—Joining or pressing tools pivoting around one axis cooperating pivoting tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81415—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled
    • B29C66/81419—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being bevelled and flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Package Closures (AREA)

Description

【発明の詳細な説明】
【０００１】
【産業上の利用分野】この発明は、二つ折されてロール
状に巻かれた包装用フィルムを引き出して商品を包み、
所定の箇所でそのフィルムを溶断及び溶着して袋状に形
成し、そのフィルムの開口部をシールする包装装置に関
する。
【０００２】
【従来の技術】従来、二つ折された熱収縮性フィルムの
溶断溶着は、実公昭６２−１８４２９号公報に開示され
ているように、溶断刃を金属製のヒートブロックで挟持
し、ヒートブロックをパイプヒーターで加熱して、加熱
された溶断刃よりフィルムを溶断溶着している。また、
ヒートブロックの両側には、フィルムの溶断溶着時にこ
のフィルムを押さえるフィルム押さえが上下動自在に設
けられている。このフィルム押さえは、溶断刃等により
加熱されてフィルムを熱収縮させないために、溶断刃か
らある程度間隔を置いた位置に設けれている。従って、
商品を包んだフィルムを溶断溶着する際の溶断刃は、２
枚のヒートブロックの間であって、このヒートブロック
の両側にある一対のフィルム押さえどうしの間の中間部
でフィルムを溶断する。
【０００３】
【発明が解決しようとする課題】上記従来の技術の場
合、商品を包んだフィルムは、フィルム押さえどうしの
中間部に位置する部分で溶断されるため、商品に対して
フィルムが、内側のフィルム押さえから溶断刃が位置す
る部分まで余分に付加されて溶断されてしまうという問
題があった。しかもこれにより、フィルムを無駄に多く
必要とするばかりでなく、後に熱収縮させる際に、余っ
たフィルムが不均一に収縮し、収縮包装後のフィルムに
しわができてしまい、外観上好ましくないという問題が
あった。
【０００４】また、フィルムを溶断溶着させる際には、
フィルム押さえと溶断刃との間隔はできるだけ狭い方が
溶断部の熱収縮等がなくきれいに溶断溶着できるが、こ
れが狭すぎると、フィルム押さえがヒートブロックや溶
断刃によって過熱してしまい、フィルム押さえの部分で
フィルムが熱収縮し、包装したフィルムの外観が極めて
悪くなってしまうという問題があった。
【０００５】この発明は上記従来の技術の問題点に鑑み
て成されたもので、収縮包装に際して、収縮包装後の包
装形態の外観が極めてきれいであり、フィルムの無駄も
少なくすることが可能な包装装置を提供することを目的
とする。
【０００６】
【課題を解決するための手段】この発明は、ヒートブロ
ックの両側に一対のフィルム押さえを設け、このフィル
ム押さえの下端面近傍に、フィルム及びフィルム押さえ
を冷却するための空気吹き出し用透孔を有した冷却パイ
プを取り付けた包装装置である。また、この発明は、溶
断刃の位置を被包装商品側に偏心させてヒートブロック
に設け、フィルム押さえを溶断刃に近接して設けるとと
もに、このフィルム押さえを冷却する冷却パイプをフィ
ルム押さえ下端部に設けた包装装置である。
【０００７】
【作用】この発明の包装装置は、冷却パイプから吹き出
された空気によりフィルム押さえの下端部及びフィルム
を冷却し、フィルム押さえを溶断刃に近接させて設ける
ことができるようにし、溶断溶着後のフィルムの外観も
良好なものにするものである。
【０００８】
【実施例】以下この発明の一実施例について図面に基づ
いて説明する。この実施例の包装装置は、図１ないし図
３に示すように、シール装置１、商品搬送ベルト２、フ
ィルム送り３およびフィルム開口器４からなる。このシ
ール装置１がシールするフィルムは、図２に示すよう
に、熱収縮性のフィルム５を二つ折にして、ロール状に
巻取られたフィルムであり、そのフィルムロール６が、
フィルム送り３に取り付けられている。フィルム開口器
４は、直角二等辺三角形の案内板７、８と、これを保持
した一対の支柱９からなる。商品搬送ベルト２は、一対
の支柱９と案内板７、８との間に挿通されている。案内
板７、８は、商品搬送ベルト２に対して互いに平行に設
けられている。また、直角二等辺三角形の案内板７、８
の斜辺７ａ，８ａが、商品搬送ベルト２の進行方向に対
して４５度になるように配置されている。フィルム５
は、二つ折状態で案内板７、８の外側に開かれて、二つ
折のフィルムの間隔が広げられるとともに、その斜辺７
ａ，８ａでフィルム５の表裏面が反転させられる。そし
て、フィルム５は、案内板７、８によって、商品搬送ベ
ルト２を挟んで、その進行方向へ、９０度送り出し方向
が変えられる。
【０００９】シール装置１は、Ｌ型に組まれたＬシーラ
１０と、Ｌシーラ１０を保持した基枠１１とを有し、Ｌ
シーラ１０と対向する下方側の位置に、シール受台１２
を有している。基枠１１は、このシール装置１が取り付
けられている基台１３に対して、図示しない回動軸を中
心として揺動自在に設けれている。さらに、基枠１１に
は、図示しないリンク機構の一端が接続されており、こ
のリンク機構は、エアーシリンダ等の駆動装置に接続さ
れている。
【００１０】Ｌシーラ１０には、アルミニウム合金から
なるヒートブロック２０と、このヒートブロック２０の
間に挿通されたパイプヒーター２１が設けられている。
パイプヒーター２１の下方であって、ヒートブロック２
０の側面のうち、シール時に被包装商品側に面した側面
に、溶断刃２２が、図示しないビス等で取り付けられて
いる。溶断刃２２は、ヒートブロックの上記側面の一部
が切り欠かれてこの側面の他の部分と面一に形成されて
いる。また、ヒートブロック２０の商品５０と反対側の
側面が、下端面に向かって一部斜めに切り欠かれてい
る。
【００１１】溶断刃２２の先端は、ヒートブロック２０
の下端面から下方に突出して設けられている。ヒートブ
ロック２０には、その上端面に断熱材２４を介して上板
２５が取り付けられ、上板２５の所定箇所に、連結片２
６が固定されて、基枠１１と連結されている。パイプヒ
ーター２１は、ニクロム線３０が中心に設けられ、その
回りにガラス繊維３１が充填されたものである。溶断刃
２２は、熱伝導率の良いアルミニウム合金等の金属で形
成されており、その表面にはテフロンコーティングが施
されている。
【００１２】Ｌシーラ１０の両側面部には、一対のフィ
ルム押さえ３５が取り付けられている。このフィルム押
さえ３５は、ヒートブロック２０の斜めに切り欠かれた
方の側面に対面したフィルム押さえ３５の先端部も、溶
断刃２２の方に向かって折れて形成されている。また、
溶断刃２２と対面した側のフィルム押さえ３５の先端部
も、わずかに溶断刃２２側に折れて形成されている。通
常、フィルム押さえ３５の先端端縁は、溶断刃２２より
さらにその先端方向に突出して位置している。フィルム
押さえ３５の上端縁には、保持片３６が突出して形成さ
れており、基枠１１の上面側に位置している接続部材３
７によって、一対の保持片３６が、基枠１１の両側で連
結されている。そして、接続部材３７は、コイルバネ３
８及び支持枠４０によって基枠１１の上面に向かって付
勢されているとともに、コイルバネ３８が圧縮する方向
に移動可能に設けられている。従って、フィルム押さえ
３５は、コイルバネ３８によって下方すなわち溶断刃２
２の先端よりさらに突出した位置にその先端縁が位置す
るとともに、相対的に上方に後退可能に設けられてい
る。
【００１３】シール装置１の下方には、商品搬出ベルト
４１が設けられ、さらに商品搬出ベルト４１の先方に、
図示しないヒートトンネルが設けられている。そして、
商品搬出ベルト４１の基端部を囲むようにしてシール受
台１２が設置されており、このシール受台１２の表面に
耐熱性のシリコンゴムの受け部４６が設けられている。
シール受台１２は、緩衝用のバネ４８を介して支持枠４
９に支持されている。
【００１４】各フィルム押さえ３５の先端部には、空気
噴射用の透孔５２が複数個形成された冷却パイプ５４が
取り付けられている。この冷却パイプ５４は、Ｌシーラ
１０に沿ってＬ型に設けられ、その基端部は、図示しな
い圧縮空気源に接続されている。
【００１５】以上の構成の包装装置の使用方法は、商品
５０を商品搬送ベルト２に載せて装置を起動すると、二
つ折のフィルム５の間に商品５０が侵入し、シール装置
１の下に商品５０が来ると図示しないセンサーによって
自動的にシール装置１が作動し、フィルム５の開口部が
シールされる。ここで、フィルム５は、最初のシール動
作によって、図２に示すように、先端縁の開口部が封止
され、その後は、一方の側面部と後部が開口しているこ
とになり、Ｌシーラ１０によってこの二方向の開口部が
動時にシールされる。
【００１６】シール動作は、図１、図３に示すように、
エアーシリンダ等によりリンク機構を介してＬシーラ１
０が、フィルム５に向かって降下する。この際、フィル
ム押さえ３５が先ずフィルム５に当たり、フィルム５を
シール受け台１２に押し付けながら、コイルバネ３８の
付勢力を受けた状態でフィルム押さえ３５は停止する。
しかし、基枠１１は、支持枠４０を介してさらにコイル
バネ３８を圧縮しながらフィルム５に向かい、溶断刃２
２はフィルム５を押して受け部４６に食い込むように圧
接し、シール５を溶断溶着する。この後、エアーシリン
ダ等の駆動装置が逆方向に作動し、Ｌシーラ１０は退避
してシール作業が完了する。このシール動作中、冷却パ
イプ５４の透孔５２からは、空気がフィルム５及びフィ
ルム押さえ３５の先端縁部に向けて噴射されている。
【００１７】この実施例の包装用フィルム用断溶着装置
によれば、フィルム押さえ３５を溶断刃２２に近させて
設けているので、フィルム５が溶断時にしわになりにく
く、溶断面がきれいに仕上がる。また、フィルム押さえ
３５を溶断刃２２に近接させても、冷却パイプ５４によ
り噴射される空気で冷却しているので、過熱することが
なく、フィルム押さえ３５でフィルム５が収縮すること
はない。また、溶断刃２２の位置がヒートブロック２０
の被包装商品側の側面に設けられ、商品５０とフィルム
５のシール位置とが近く、商品５０を包んだフィルム５
のうち商品を包むのに必要な部分以外の余分なフィルム
の量を少なくすることができ、加熱して収縮させた際に
しわも生じない。
【００１８】尚、この発明の溶断刃およびヒートブロッ
クの形状は、上記実施例に限定されず、適宜設定できる
ものであり、溶断刃をヒートブロックの中央部に設けて
もよく、偏心させても良い。また、溶断刃とヒートブロ
ックの両方が一体的に設けられたものでも良い。また、
シール装置は、Ｌシーラを用いたものの他いわゆるＩ型
のシール装置にも利用できることは言うまでもない。
【００１９】
【発明の効果】この発明の包装装置は、フィルム押さえ
の下端面近傍に、フィルム及びフィルム押さえを冷却す
るための空気吹き出し用透孔を有した冷却パイプを取り
付けたので、フィルムが冷却され、溶断時にしわになり
にくく、溶断面がきれいに仕上がる。また、冷却パイプ
でフィルム押さえを冷却しているので、フィルム押さえ
が過熱することがなく、フィルム押さえを溶断刃に近接
させて設けることができ、溶断部近傍でフィルムを押さ
えて、フィルムの収縮等を確実に防止し、きれいな溶断
面に仕上げることができるものである。また、この発明
は、溶断刃の位置を被包装商品側に偏心させて設けたの
で、フィルムの無駄が少なく、経済的に効率良く包装す
ることがで、しかも、収縮の際のしわも生じにくくする
ものである。
【図面の簡単な説明】
【図１】この発明の一実施例の包装装置の部分側面図で
ある。
【図２】この実施例の包装装置の斜視図である。
【図３】この実施例の溶断溶着装置の使用状態を示す縦
断面図である。
【符号の説明】
１ シール装置 ５ フィルム ２０ ヒートブロック ２２ 溶断刃 ３５ フィルム押さえ ５２ 透孔 ５４ 冷却パイプ

Claims (2)

    (57)【特許請求の範囲】
  1. 【請求項１】 二つ折にされロール状に巻かれた熱収縮
    性フィルムを引き出して、その間に商品を配し商品の大
    きさに合わせて上記フィルムを切断して商品を包装する
    包装装置において、上記フィルムを溶断溶着する溶断刃
    と、上記溶断刃をフィルムの溶断溶着可能な温度に加熱
    するヒーターと、上記溶断刃に熱を伝えるヒートブロッ
    クと、このヒートブロックの両側に近接して設けられ、
    上記溶断刃の先端部よりわずかに突出して設けられてい
    るとともに後退可能に設けられた一対のフィルム押さえ
    とを有し、上記溶断刃は上記ヒートブロックの被包装商
    品側に偏心して設けられ、上記ヒートブロックの上記溶
    断刃が取り付けられた側とは反対側の側面が切り欠か
    れ、上記フィルム押さえの先端部が上記溶断刃に向かっ
    て斜めに折れて形成され、上記各フィルム押さえの下端
    部に、上記溶断刃と平行に長手方向に、圧縮空気を上記
    フィルム及びフィルム押さえ先端部に向けて噴射する複
    数の透孔が形成された冷却パイプを設けたことを特徴と
    する包装装置。
  2. 【請求項２】 上記溶断刃及びヒートブロックは、Ｌ字
    型に組まれてＬシーラを形成し、このＬシーラにより二
    つ折されたフィルムの２方向の開口部を同時に溶断溶着
    することを特徴とする請求項１記載の包装装置。
JP04024417A 1992-01-14 1992-01-14 包装装置 Expired - Fee Related JP3118478B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04024417A JP3118478B2 (ja) 1992-01-14 1992-01-14 包装装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04024417A JP3118478B2 (ja) 1992-01-14 1992-01-14 包装装置

Publications (2)

Publication Number Publication Date
JPH05193626A JPH05193626A (ja) 1993-08-03
JP3118478B2 true JP3118478B2 (ja) 2000-12-18

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ID=12137584

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Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3118478B2 (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7637299B2 (en) * 2005-07-07 2009-12-29 Shanklin Corporation Cutting element for sealing machine
JP5887187B2 (ja) * 2011-11-09 2016-03-16 富士インパルス株式会社 ヒートシール装置、シーリング方法、被シール物
JP6554309B2 (ja) * 2015-04-21 2019-07-31 富士インパルス株式会社 シール装置

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